Price / CFO is the Market capitalisation of the company divided by cashflow from operations for the most recent financial year. It is a stock valuation indicator or multiple that measures the value of a stock’s price relative to its operating cash flow per share. It’s different from price / free cash flow since it gives an indication of how cash-rich is the company’s core business. 

This ratio could be misleading if analysed standalone. It’s best to analyse it with other cash-based valuation metrics. For instance, a low Price / CFO but a high Price / FCF might indicate the company’s core business is functioning well but the company is aggressively reinvesting its profits.